Aeroplane wing



Jan. 8, 1924. 1,480,327

r o. H. WISENANT AEROPLANE WING Filed May 10 1920 a)" vewtoz PatentedJan. 8, 1924.

UNITED STATES. PATENT OFFICE oscaa H. mm, commune srmes, comma.

snornm wme;

Application am '11,, 10,

To all whom it may concern:

Be it known that I, Oscar H. WIsmnN'r', citizen of the United States,residin at Colorado S r' in the county of .El aso and State iifo rado,have invented certain new and useful Improvements in Aero lane Wings;andI do hereby declare the fo owing to be a full, clear, and exactdescription of the invention, .such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to new and useful improvements in aeroplane winand more particularly to an aeroplane win whereby the vacuum lift can beincreaserfi It is a well-known fact in the science of aviation that thegreatest lift is derived from the vacuum suction on the u 'per side ofthe aeroplanewing, this lift ing about 87% greater than the pressure onthe bottom side.- It is, therefore, the main object of my invention torovide means for increasing this vacuum li nearly 100% by the use of myimproved concave 'up er side wings. I

Afurther objecto the resent invention is the provision of an aerop anewing provided with an increased concave surface which is ada table totheform and shape of wing use atthe present time without changing theaccepted curvature of the wings now in A further object of the presentinvention is the provision of an increased vacuum lift in the neralconstruction of aeroplane wings without adding resistance as theoriginal curvature of the wing is not'altered in any way whatever. Astill further object of this invention is the provision of an increasedconcave surface for the u per side of an aeroplane which will notinterfere with the action 0 the ailerons or with the air currents,generally termed wash-outs, that act upon the outer ends of aeroplanewings. r

With the above and other objects in view, the invention consists in thenovel'features and construction, the combination and arrangement ofparts hereinafter more fully set forth, inted out the claims and wshlpwlili int e accompanying drawings, in

Figure 1 is a perspective view of a frame of an, aeroplane wing,constructed'in accordancewwith my invention .Fi e2 is'a EGI'SPBGUVG viewof the con;-

ple an at a point adjacent their central means of the strips 8, saidstrips be' 7 seportion of the cross-pieces- 1920. Serial Io. 880,850.

Figure 3 is aside elevation, increased vacuum atthe side of-the' wing.

In carryin out my invention, I provide a frame whi is general] indicatedin perspective n Figure 1 an which includes a plurality of crosscated bythe numera are connected at their ends by means of the longitudinalstrips 2 and further connected portion by cured to the to 1 in anysuitab e manner. In the construction of the frame, certain of thecross-p' preferably the ones 'arran'ged at'the end 0 the frame and atthe central portion thereof areprOVided-With arcuate outer surfacesasindicated at 4-.' In. the present construction of the frame which isherein illustrated, the

end piece!) is disposed at an angle with respect to the othercross-pieces to give the desired sha to the wing when it is completed.nthecentral portion of the wing, there are twocross-pieces indicated bythe numeral 6, which are provided with arcuate outer faces to corres ondwith the curvature of the u per side 0 the wing.

In -or or to provide for a vacuum lift in the top of the wing, thecrossieces 7 are cut-away or concaved centre upper edges as shown at 8.hese crosspieces 7 are arranged in sets upon opposite sides of thecenter of the wingso that when the canvas orother covering material isar ranged over the frame, suitable pockets 9 are formed in the upperface of the wing and dis d upon opposite sides of the center t ereof asillustrated in Figure 2. From this it will be apparent that a vacuumlift is provided that can be added to the general type of aeroplane win?without changing the present accepte curvature and 4 which will increasethe vacuum lift to a great extent.

ieces generally indi 1. These cross-pieces" of theirshowing the In Fi re3, I have illustrated a slightly form of the invention, wherein thecross-pieces are each formed in sections, suitab y'connected together bystri s 10erraged u nthe opposed faces of t e crosspieces w erebytosuitably connect the various sections 11 together. It will be noted thatthe several sections are spaced relation to provide for openings 12, tus decreasing the weight of the The end sections 13 are arranged betweenthe V ends of the strips 10 and suitably secuid thereto in any desiredmanner. It will be apparent from the 0 oing that this increased vacuumlift can secured without adding resistance as the original curvature ofthe W' is not altered in any way whatever and oes not interfere with theaction of the ailerons or of the air currents, which are termed wash-onthat act upon the outer ends of all aeroplane wings.

What I claim is: I

1. An aero lane wing of the class described including a frame,comprising crosspieces, said cross-pieces being intermediate the endsand center of the wings having concave portions cut in their upper facesintermediate their ends and a cover arranged over said frame havingportions thereof disposed within to conform with the concave ma amportions of the cross-pieces whereby toprovide pockets upon oppositesides, of the tending and longitudinal spaced concave 8! pockets saidpockets provided with substantially perpendicular end surfaces.

3. In an aeroplane wing a pocket formed in one face extendinglongitudinally of the wing but of less len h than the wing, said pocketconcaved re ative its longitudinal axis and havin end facessubstantially perpendicular to t e plane of the wings.

In testimony whereof I affix my signature.

OSCAR H. -WISENANT

